---
id: 65576ff7888f9e96f52a4be1
title: Passo 2
challengeType: 20
dashedName: step-2
---

# --description--

Dictionaries store data in the form of *key*-*value* pairs. A key is separated from the correspondent value by a colon. And each key-value pair is separated from the following pair by a comma:

```py
my_dict = {
    'name': 'Michael',
    'occupation': 'Lumberjack'
}
```

Add a new key-value pair to your dictionary. Use the string `species` as the key, and the string `guinea pig` as the value.

# --hints--

You should add a new key-value pair to your `copper` dictionary.

```js
({ test: () => assert(__pyodide.runPython(`
    copper = __locals.get("copper")
    len(copper) == 1
  `))
})
```

You should have a `species` key with the value `guinea pig` inside your `copper` dictionary.

```js
({ test: () => assert(__pyodide.runPython(`
    copper = __locals.get("copper")
    copper == {"species": "guinea pig"}
  `))
})
```

# --seed--

## --seed-contents--

```py
--fcc-editable-region--
copper = {}
--fcc-editable-region--
```
